#ifndef STUDENT_LIB_H
#define STUDENT_LIB_H
struct student
{
	int id;
	char *name;
	char *sex;
	int age;
};
void add(struct student *s);
void del_by_id(int id);
void print_new_student(void);
void print_all_student(void);
void print_student(struct student *s);
void print_student_table_head(void);
#endif 
